Thanks!
I'll load that back in and then see if I can get USB audio again on 10.6.8 and will report back here with the results.
OK, I've tried the older USB driver that is available at the axefx.fr site.
With the Axe running 10.09 I can see the Axe i/o selections in both Audio/MIDI setup and in Logic's audio prefs again.
But, when I have the Axe's USB Out pref in the Axe's I/O menus set to Output 1, I only get signal when Inputs 3&4 are selected in Logic's channel strip (the dry unprocessed AxeII Output feed) .
If I switch the Axe's USB Out pref to Output 2 or Input I do get the signal from its Out 2 and/or its dry unprocessed signal when I have Inputs 1&2 selected on Logic's channel strip.
So it kind of works now, but I can't get the Axe's Out 1 feed into Logic, only the Out 2 feed or the unprocessed feed.
Hope that makes sense. It's hard to describe.
If I wasn't already using the Axe's Out 2 for something else I suppose I could even work this way.
If I've mis-set something else on the Axe or the 'puter it's not obvious to me.
Thinking that the new USB features in 10.09 might have borked something as far as compatibility with the old USB drivers is concerned, I went and re-installed 10.06, but it behaves exactly the same as discussed above with 10.09.
And that's not the way it worked before I first installed 10.09 and the new USB drivers.
So, I think that there might have been another interim USB driver issued by Fractal that doesn't appear to be on that axefx.fr archive site.
I noticed when installing the USB driver that is on that site, that it mentioned OS 10.5.7 as being its minimum requirement.
But the USB driver that's been on Fractal's site for the last several months stated that OS 10.7.4 was the minimum requirement as I recall.
So, does anybody still have the immediately-previous-to-the-current-Mac-USB installer that I could have?
I'm kind of hoping that the new USB buffer size selections in v10.09 will also smooth out any of the minor problems I was having with the most recently previous USB drivers, but it seems more like the new firmware and the old drivers are not really compatible.
I can't run the new USB audio drivers on my system until I upgrade to Mountain Lion which will mean that I'll also have to buy a new audio interface.
Oiy.
Guess I'll probably just have to pass on USB audio for a while more and keep using S/PDIF or the XLRs.
Minor problems, but still frustrating.